Improvement in combined blowers and rotary engines



H. P. TENA'NT.

Improvement in 'Combfined Blowers and Rotary Engines.

Patented May 2 INVENTOB AM. PM ro-ur/ma/uP/wc 00. MM (asset/15$ M0055.)

HANSON P. TENANT, OF- EAST GERMANTOWN, INDIANA.

Letters Patent No. 114,489, dated May 2, 1871.

IMPROVEMENT IN COMBINED BLOWERS AND RO TARY ENGINES.

The Schedule referred to in these Letters Patentand making part of the same.

I, Hanson I. TENANT, of East Germantown,

Wayne county, Indiana, have invented an Improved Blower, of which the following is a specification.

Nature'a ntl Objectsof the Invention.

Descmptwn of the Accompanying Dra'wmg.

Figure 1 is a view of my improved blower, the case or shell and its accessories being'shown in vertical section, while thezrotary fau'and engine are shown in elevation;

Figure 2 is a partially sectionized side elevation of the apparatus with the operative partsremoved so as to expose one of the eccentric grooves which actuates the sliding-pistons of the engine and Figure 3 is a vertical section of the blower at the line a; x. 5

General Description.

A represents the inclosing-case or shell, which consists of a flat'box having feet B and a cover, 0, which latter, when removcd, allows access to the operative parts of the apparatus.

Cast with the shell A is a circular flange, D, which is concentric with an inner one, E, within which-rotate the pistons F, that are capable of sliding in the radial slots G of the disk H.

The disk H is connected to the shaft-1 by means of blades J, which latter constitute the fans of the blower prope The inner ends of the sliding pistons F are furnished with studs f, upon which are journaled rollers K, which serve to diminish the friction caused by said studs traversing the eccentric grooves L L, which are arranged as follows:

These grooves are cast on the inner sides of the box A and cover 0, and said grooves .are furnished with portions 1, which are concentric with the shaft I, and also with portions 1, that are concentric therewith. As the wheel H is rotatedthe concentric portions'l cause the. pistons F to protrude beyond the periphery of said wheel, and the; concentric parts Z T613330; the pistons within the slots G, as clearly shown in g. 1.

The apparatus is provided with two' abutments, M

and N, which are fitted within the case in such a man nor as to be directly opposite the pistons when the latter are in their retracted positions. N The upper abutment N serves for the steam to react against, while the lower one, M, divides the exhaust-chamber into two compartments, 0 O.

P is the escape-pipe from the exhaust-chambers.

The shaft I is journalcd in bosses a and c, which project outwardly from the shell A andcover O, and said bosses are provided with openings, B, through which air enters to supply the fan J.

S S are sliding plates or gates, which can be opened or closed to a greater or lesser-extent, so as to regulate the quantity of air which the fan receives.

The blast is discharged from the fan through the side pipes T T, which are external to the case.

7 The rotary engine receives steam through two ports, U U, which are located on either side of the upper abutment N.

Pipes V V, communicating with a common steampipc, \V, serve toconduct the motive power to the ports U U.

-The pipes V V are provided with cut-offs, o c, which are capable of being operated by a lever, X, in such a manner that when one of them is opened the other will be closed.

The common steam-pipe W may be provided with any approved form of throttle-valve and governor.

The annular space 'Y, between the two circular flanges D and E, and also the space between the outer flange and shell, serves to prevent the radiation of heat from the engine.

Z are bolts, which secure the cover 0 to the case A.

The disk H is provided with annular flanges or rims h. h, which are ground and accurately fitted so as to form steam-tight joints between said wheel and the shell, thereby preventing the entrance of steam into the fan-chamber.

Q is the fly-wheel.

Operation.

' The operation of the apparatus will be readily understood by referring to fig. 1, audit will be seen that if the valve c is closed and the one V opened the steam will enter the engine through port U. As the steam enters this port it will, by pressing against the protruded piston and reacting against the abutment N, cause the wheel H to revolve in the direction indicated by the arrow; -As this wheel rotates the sliding pistons are protruded and retracted at the proper moment by the eccentric grooves L, as previously described.

The rotation of wheel H carries the shaft I and blades J along with it, and thus discharges a powerful blast of air down the side pipes T T.

can state pan affine.

.If at any time it is desired .to reverse the engine it can be done in a. moment by simply reversing the lever Xjso as to cause the steam'to enter the engine through the other port 13..

-Whenever it is desired to-constrnet an apparatus which will not require to be reversed only one of the ports U and pipes V need be employed.

It will beseen that this apparatus combines all the advantages of a. rotary engine and rotary blower in one structure, and thereby avoids the complication of bands, pulleys, and gear-wheels, which are necessary when the two devices are separate.

I claim as my inventiona 1. The combination of a rotary engine and rotary GEORGE. S. NEFFL MARTIN SNAVELS. 

